It would be helpful to display somewhere either on/in the screen or somewhere on the physical watch the kind of watch such as pulse, core 1, and core 2, in case the user forgets which one it is.
I agree this would be useful, we may upgrade the engraving in the future, although there are already Core 2 out there without the 2 in the engraving.
That said, at the very least you can check the app to see the version of Core you have as it explicitly says Core 1 or Core 2
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